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chemistry

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Carbon-14 has a half-life of 5730 . In a plant fossil, you find that the has decayed to 1/32.0 of the original amount. How long ago was this plant alive?

  • chemistry - ,

    k = 0.693/t1/2
    Solve for k.

    ln(No/N) = kt
    You can make No any convenient number. I would pick 64/
    N is No x (1/32) = ? for No = 64 that is 2.00
    k from above.
    Solve for t in years.

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